Greywacke was created in 2009 by Kevin Judd, chief winemaker at Cloudy Bay from its inception for 25 years and instrumental in the international recognition which Marlborough Sauvignon Blanc enjoys now. The name 'Greywacke' was adopted by Kevin for his first Marlborough vineyard located in Rapaura in recognition of the high prevalence of rounded greywacke river stones in the soils of the vineyard, a sedimentary rock which is widely found in Marlborough. Kevin Judd is also New Zealand's finest wine photographer and has recently published a book 'The Landscape of New Zealand Wine'.
The grapes for this wine are primarily sourced from the low-yielding Mendoza clone, known for its concentration of flavour and crisp acidity; the balance were from Clone 95. The majority of the fruit was sourced from the lower reaches of the Brancott Valley and Fairhall, grown in gravelly, clay-loam soils, the remainder coming from Renwick and Rapaura, grown in young alluvial soils containing high proportions of New Zealandâ€™s ubiquitous greywacke river stones. The majority of the vineyards were trained using a two-cane VSP (Vertical Shoot Positioning) trellis with the balance on the divided Scott Henry canopy management system.
Warm spring weather created early flowering and early ripening. The vines were very low yielding, with smaller berries than usual, which led to increased concentration and quality in the 2015 wines.
The vineyards were hand-picked separately at high ripeness levels and whole bunch pressed using very low maceration press cycles. The resulting juice was lightly settled and racked to French oak barriques (20% new). The juice was allowed to undergo spontaneous indigenous yeast fermentation, the final phase continuing for many months. The wine received occasional lees stirring and underwent a complete malolactic fermentation. It was transferred out of oak after 18 months and bottled in December 2016.
A seductive combination of lightly toasted brioche, roasted hazelnuts and lemon curd interwoven with aromas of white peach and sweet melon. An intricate fusion of opulent fruit and a nutty, smoky savouriness derived from indigenous fermentations in French oak barriques. The savouriness carries through onto a wonderfully dry, but rich and powerful palate that has great texture and concentration, with a crisp grapefruit finish.